Comment 10 for bug 1830507

The suggested change from the email landed in systemd-resolved 253 (Mantic): https://launchpad.net/ubuntu/+source/systemd/253.5-1ubuntu1

So it's easier to adopt Netplan's configuration using systemd override configs, e.g.:

$ cat /etc/systemd/network/10-netplan-eth0.network.d/override.conf
[Network]
MulticastDNS=resolve

For all common usecases, it's suggested to use Avahi instead of Netplan/systemd-resolved, to manage the mDNS needs.